/*
 * Copyright (C) 2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package deep.in.spring.cloud;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
 */
@SpringBootApplication
@EnableBinding({Source.class, Sink.class})
public class SCSApplication {

    public static void main(String[] args) {
        SpringApplication.run(SCSApplication.class, args);
    }

    @RestController
    class HelloController {

        @Autowired
        Source source;

        @GetMapping("/sendMsg")
        public String sendMsg(@RequestParam("body") String body) {
            return String.valueOf(source.output().send(MessageBuilder.withPayload(body).build()));
        }

    }

    @StreamListener(Sink.INPUT)
    public void receive(String msg) {
        System.out.println(msg);
        return msg.toUpperCase();
    }

}
